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Flashcards in Exam 3 Deck (23)
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1
Q

Caudal Crux Lig fn

A

Ca I E
⛔️Ca drawer/sublux
⛔️internal rotation
⛔️hyperext

2
Q

Dx collateral ligg rupture

Tx

A

MCl: Valgus stress test➡️rod press on LATERAL femur➡️ open medial

LCL: Varus stress test➡️ rod press on MEDIAL tibia ➡️ open lateral

Tx:
Stretched = imbrication
Avulsion = screw bone fragment
Rupture = 2 screws & prosthetic suture

3
Q

OCD

A

O.Latens➡️O.Manifesta (subclinical: rads✅) ➡️OCD (CS)

🎯SETS➡️ Stifle 4th MC

Bilat
MC medial aspect of LATERAL FC
🐶5-9mo

Tx:
Palliative- currette➡️fibrocartilage (fair-poor Px)
Restorative- OC Autograft transplant (unk Px)

4
Q

CrCL

A

Type 1 col
Inserts Cr: Lat➡️Med

Cr I E
⛔️hyperext
⛔️Internsl rot
⛔️Cr tibial transloc

MC Ortho Sx treated dis
MC Cause of PL Lameness

1° Biological spont degen➡️ bilat w/in 1yr

5
Q

Colat band drawer signs

A

Partial Med tear: normal in ext, ✅positive drawerin FLEXION

If only Lat band torns➡️🚫 drawer in both

6
Q

Meniscal tears

A

1° Ca. Horn of MEDIAL Meniscus due to CrCLR

NON-wt bear lame
Positive SIT TEST

7
Q

Dx CrCLR

A

Cr drawer test (passive)

Tibial compression test/Cr tibial thrust (dynamic)

8
Q

TiTa lux

A

1° repair- tibia pops➡️ MEDIAL = lateral malleolus Fibula Fx
Pin fib➡️tib
Suture colat ligg

Pantarsal arthrodesis- degloving injury of MEDIAL tarsus➡️ lux/fx
⭐️4 🎯 BCRF
Bone graft
Compression
Rigid fix
Fn angle
9
Q

Achilles

A

Common calcanean tendon =

Gastrocnemius
SDFT ➡️ switches to most superficial 1/2 leg
Tendons: biceps femoris, semitendinous, gracillis

10
Q

Plantigrade stance CS

A

COMPLETE Rupture Calcanean tendon

Trauma/mechanical overload
MC midsubstance tear

Tx: 3-loop pulley or locking loop suture patterns

Px: 😄 good

11
Q

Partial disruption

A

Dropped hock ⭐️bunched up toes
✅SDFT still intact

Chronic tear➡️heal
Thicken Cal-tendon

Tx: 3-loop pulley or locking loop suture patterns

Px: gaurded ⚔

12
Q

Ortho trauma triage

A

ABCD

Airway/breathing
Circulation
Disability

13
Q

Ortho trauma triage

A

ABCD

Airway/breathing
Circulation
Disability

14
Q

CREPI

A
Crepitus
Range of motion
Effusion
Pain
Instability
15
Q

Open Fx

A

ALWAYS 🚨🚑

Culture all wounds
Start BS Abx: amp + flouroquinolone

16
Q

Lux

A

MC Coxofemoral jt ➡️ CrD
Tx: Ehmer sling

Elbow lux ➡️ Lat&raquo_space; Med
Tx: Spica splint

17
Q

Biomech

A

Forces:
Compression- ⬇️ axis
Tension- pull
Shear- diagonal/slide

Bending = CT = concave & convex
Torsion = CTS

⬆️D : ⬆️F shear

Cortical bone ➡️ strongest in compression

18
Q

Torsion

A

Spiral Fx propagate along 30° line

19
Q

Fx assessment

A

Mechanical:
1 fx line/1 limb ➡️ 🚨 comminuted/multi limb

Bio:
Young/healthy/cancellous(metaphysis) bone ➡️🚨 poor ST coverage/cortical bone/high v

Clinical:
Good 🐶/client/stoic ➡️ 🚨 poor compliance/aggressive🐶/ wimp (1° sighthounds ➡️ high stress)

20
Q

Primary healing

A

🚫callus

Req: PERFECT align & low motion/strain

Reform Haversian system

21
Q

Secondary healing

A

✅callus forms
MC form

Endochond/intramem bone heal

Due to micromotions & °instability

22
Q

Strain theory of bone healing

A

Fx gap tissue type tolerates a sp. degree of motion

23
Q

Strain eqn

A

(🔼gap w)/(total orig gap w) = % strain

100% - granulation
10% - cartilage
2% - bone